Type-50 concussion rifle/Gameplay

From Halopedia, the Halo wiki

This weapon is suitable for clearing out narrow corridors or corners. Because of the weapon's splash damage, the concussion rifle should be fired and treated like a rocket launcher, though it has considerably less firepower. It does not fare well in wide open terrain and should instead be used as a "corridor sweeper".

The weapon can sometimes utilize objects around it to a more lethal effect than the bolts it fires. A small crate shot at from close range can be launched fast enough to kill any enemies within a relatively short range, thought the exact distance depends on its trajectory. The kinetic energy from its blasts can also be used to push an opponent off a tall structure or cliff to his death.